Browser Fingerprinting

Do you know how much information your browser leaks?

Every time you visit a website, your browser quietly shares information about you before you type a single character. Your operating system, screen size, GPU, timezone, installed fonts, language preferences, and more are all accessible to any page you load.

Individually, these details seem harmless. Combined, they form a digital fingerprint that can uniquely identify your device across the web — even without cookies, logins, or tracking scripts.

This technique is known as browser fingerprinting, and it is used by advertisers, analytics platforms, and fraud detection systems to recognize and follow users across sites. Unlike cookies, a fingerprint cannot be easily cleared. It is derived from your device's natural characteristics.

Click the button below to see exactly what your browser is revealing right now. Nothing is stored or transmitted beyond this page. Try running it again after enabling a VPN, switching browsers, or turning on privacy settings to see what changes.

Run Your Report

Reducing Your Exposure

There is no single fix, but several steps meaningfully reduce how much your browser reveals:

• Use a VPN — masks your IP address and approximate location.
• Enable browser privacy settings — Firefox’s “resist fingerprinting” mode and Brave’s shields actively reduce fingerprint surface area.
• Keep software updated — outdated user-agent strings are more distinctive.
• Use Tor Browser — aggressively normalizes all signals so every user looks identical.
• Limit browser extensions — extensions can modify behavior in detectable ways.

Perfect anonymity is difficult to achieve without trade-offs. The goal is awareness — understanding what you are sharing so you can make informed decisions about when and how to reduce it.